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Finding the Fourth Proportional to 438,532.92, 657,796.50 and 338,836.92

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Solution

The fourth proportional to 438,532.92, 657,796.50 and 338,836.92 is: 508,253.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,532.92 : 657,796.50 = 338,836.92 : x
  2. Step 2: Convert to fraction form
    438,532.92/657,796.50 = 338,836.92/x
  3. Step 3: Cross multiply
    438,532.92x = 657,796.50 × 338,836.92
  4. Step 4: Simplify right side
    438,532.92x = 222,885,740,046.78
  5. Step 5: Solve for x
    x = 222,885,740,046.78/438,532.92
  6. Step 6: Final answer
    x = 508,253.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.